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e1f414b6 1/** @file\r
2 AsmWriteIdtr function\r
3\r
4 Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
1efcc4ae 15\r
f734a10a 16#include <BaseLibInternals.h>\r
e1f414b6 17\r
42eedea9 18/**\r
19 Writes the current Interrupt Descriptor Table Register(GDTR) descriptor.\r
20\r
21 Writes the current IDTR descriptor and returns it in Idtr. This function is\r
22 only available on IA-32 and X64.\r
23\r
24 @param Idtr Pointer to a IDTR descriptor.\r
25\r
26**/\r
e1f414b6 27VOID\r
28EFIAPI\r
29InternalX86WriteIdtr (\r
30 IN CONST IA32_DESCRIPTOR *Idtr\r
31 )\r
32{\r
33 _asm {\r
34 mov eax, Idtr\r
35 lidt fword ptr [eax]\r
36 }\r
37}\r
38\r